Combined burglar lock and alarm.



A. R. BENEDICT.

COMBINED BURGLAR LOCK AND ALARM.

APPLICATION FILED DEC-12. 1917.

1,283,635. Patented Nov. 5,1918.

gwuento'a H-R-BENEmc UNITED STATES PATENT orriou.

'ADELBERT n. BENEDICT, or soUrH TACOMA, WASHINGTON.

To all whom it may concern: j 1

Be it known that I, Annnnniz'r R. BE E- DIGT, a citizen of the United States,resid1ng at South Tacoma, in the county of=Pierce and State of Washington, have invented certain new and useful Improvements in Combined Burglar Locks and Alarms, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to devices for preventing the unauthorized opening of doors, and particularly to a combined lock and alarm. I g

The general object of the invention is the provision of a very simple and convenient device which may be disposed against 'a door and which will impede'or prevent "the opening of the door until the device is're moved.'

A further object is to provide a construc tion of this character with an alarm whereby if an attempt be made to open the door, the alarm will be sounded.

A further object is to provide a device of this character, which is very simple in construction, may be cheaply made, and 'readily applied.

Other objects will appear in the course of the following description My invention is illustrated in the accompanying drawings, 'wherein":

Figure 1 is a side elevation of my improved door holderand alarm, thecasmg being shown in section;

Fig. 2 is a top plan view of the construction illustrated in Fig. 1 with the bell and winding key removed and the top wall of the casing removed.

Referring to these drawings, 10 designates a casing generally which has an end wall 11 and a bottom wall 12 disposed approximately at right angles to each other. A cover 13 extends over the top of the casingand the casing is also provided with side walls 14. Extending from the wall 11 to the wall 12 and passing through these walls'are a plurality of pins or spikes 15 the ends of which are sharpened. These spikes are preferably disposed at an angle of about 45 and end wall. The lower ends of the spikes are beveled downward and forward while the upper ends of the spikes are beveled toward their rear ends.

Mounted upon the walls 10 and 11 is a Specification of Letters Patent. Patented Application filed December 12,1917. Serial Nd. 206,814.

' supporting angular in form and is providedwith a with relation to the bottom gs: K co viBINED-BUReLARLoc .ANDALARM. I

Nov. 5', 1918.

form and disposed above the bar 16 is a second' supporting bar 17, which isalso These bars are supported in spaced relation in any suitable manner,

was for instance by means of the post 18 and the post19. Mounted at one end of the upper bar 17 is a post '20 supporting an alarm gong 21.

the bars 16 the frame is 'atively connected one 23, the other or outer Operatively supported between end of a coil spring end of the spring'being operatively connected to the post 18. The arbor. 22 extends through the bar 17 The arbor carries a gear wheel 25. 'Rotatively mounted in the bars 16 and 17 is an arbor 26 carrying-a lantern wheel 27 and a star wheel 28. The lantern wheel is engaged by the gear. wheel 25. Mounted in the bars 16 and 17 for oscillation is a pallet shaft 29 carrying the anchor pallet 30 which coacts with thestar wheel 28. Extending radially from the pallet shaft 'is an arm 31 having the usual head for engagement with the gong. Alsoextending from the pallet shaft is an armI32, which is angularly bent to extend behind the post19. Preferably .a pawl 3:3 is mounted on'wheel 25whieh'pawl engages a ratchet 'wheel 33 fast on the arbor 22. Thus the spring may be wound up when the pallet engages the star wheel 28 to prevent a rotation ofv the star wheel.'

Rotatably mounted upon the post 19 is a latch arm which extends rearwardly and then upwardly and is twisted in its length and which is adapted to engage with the extremity of the arm 32 and hold the arm from oscillation, thus preventing the pallet from oscillating under the action of the star wheel.

In the practical use of this device, it is disposed on the floor at the threshold of the room with the upper ends of the spikes 15 disposed in very door. 'Now if an attempt be made to open the door, the pressure on the upper ends of the spikes 15 will force the lowerends of the spikes downward into the floor and the 7 upper ends of the spikes will become slightly with which the spikes are embedded within bar 16' which may be angular in and 17 atthe opposite end of an arbor-22 to which is operwinding handle 24.

close proximity to the Cit the floor or door and the greater the resistance offered to the opening of the door. Thus my device acts as a door lock. lVhen the door is opened, the door will strike the latch 34 and shift it in the direction of the arrow in Fig. 2, carrying the latch away from the extremity of the angular end of the arm 32. This will release the arm and leave the arm and the pallet free to vibrate. Under these circumstances, assuming that the pawl 38. has been turned out of its operative position, the spring motor will rotate the star wheel and this will cause, as is evident, an oscillation of the pallet and the ringing of the alarm. Preferably all of the gears and other working parts of the device are housed with the exception of the alarm gong, the winding key and the latch 34, and preferably the to of the casing is removable so that the gearing may be adjusted or repaired, when necessary. The device may be made in various sizes and of various materials suitable for the purpose and inasmuch as it is very compact, it may be readily carried in a travelers bag. By providing a plurality of pins or spikes 15, the force exverted to open the door will be very greatly resisted and it would practically be impossible to open the door until the device was removed and there would be no chance of the spikes bending under strain. The device may be also used for holding closed the doors of stores, where the proprietor sleeps on the premises or where a Watchman is kept. It may be used as an adjunct and safety lock for all doors where it is desired to absolutely prevent a' burglar breaking in by taking off the lock or otherwise tampering with the lock.

While I have illustrated a particular embodiment of my invention which I have found very effective, it will be obvious that many changes may be made in the details of construction without departing from the spirit of the invention as defined in the appended claims.

Having described my invention, what I claim is 1. A safety locking device for doors comprising a supporting frame having a bot tom member and an end member disposed approximately at right angles to each other, and pins extending through the end and bottom members and beyond these members, the extremities of the pins being sharpened and the pins being disposed at an angle to the bottom and end members.

2. A safety locking device for doors comprising a supporting frame having a bottom member and an end member extending at right angles to each other, pins disposed diagonally to the bottom and end members supported thereby and extending beyond said members, the pins at one end being adapted to engage a floor and at the other end a door, an alarm sounding mechanism mounted upon the frame and normally held from actuation, and means for releasing the alarm sounding mechanism including a shiftable arm extending beyond the vertical end member and beyond the corresponding ends of the pins and adapted to be engaged by the door if an attempt be made to open the door.

In testimony whereof I hereunto aiiix my signature in the presence of two witnesses.

A. R. BENEDICT.

Witnesses JAMES MORGAN, FLORA M. ELDER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

